0F29530 WD Ultrastar DC HC520 12TB SAS 256 MB 3.5" Server HDD

High-Capacity 3.5in Enterprise SAS HDD for RAID and Bulk Storage with the 0F29530

The 0F29530 is a 3.5in internal enterprise HDD engineered for SAS server backplanes where predictable throughput, sustained availability, and controlled latency are required across capacity-first storage tiers. It integrates cleanly into modern x86 server and storage platforms, aligning with SAS HBAs and RAID controllers in dense enclosures designed for 24/7 duty cycles.

With CMR recording and 7200 RPM mechanics, the 0F29530 supports consistent write behavior that is critical for rebuild stability in RAID arrays and for sequential-heavy workflows such as backup and bulk data repositories. The SAS interface provides enterprise link characteristics and operational telemetry suited to large-scale fleet management. A 4Kn physical format with 512e emulation helps maintain compatibility across mixed infrastructure while enabling modern sector handling. Self-encrypting drive capability supports data-at-rest security policies without changing the host architecture.

Why Choose the 0F29530?

The 0F29530 delivers a strong density-to-bay ratio for capacity-centric pools, allowing storage architects to scale usable terabytes per rack while keeping power and service complexity bounded. Designed for continuous data center operation, the 0F29530 fits deployment models that prioritize predictable lifecycle behavior, RAID integrity, and straightforward expansion through additional SAS shelves or nodes.

As a WD Ultrastar-class enterprise component, the 0F29530 reflects WD’s focus on reliability engineering, qualification for data center vibration and thermal profiles, and compatibility with common SAS infrastructure standards used in enterprise storage and server platforms.

Key Applications:

• RAID arrays in SAS backplanes
• Backup and restore repositories
• Bulk data storage tiers
• Archive and cold data pools
• Scale-out storage expansion

At Happyware - Server Hardware you benefit from non-binding offers tailored to your capacity and enclosure requirements and the option to extend the warranty up to 6 years to align drive coverage with enterprise refresh cycles.